Car-brake mechanism.



0. M. MQGART HY. GAR BRAKE MECHANISM. APPLICATION FILED MAY 15, 1908.

Patented Aug. '31, 1909.

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U. M. MGGARTHY.

GAR BRAKE MECHANISM.

APPLICATION FILED MAY 15, 1908. 932,994 Patented Aug". 31, 1909.

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UNITED srArEs- Parana c rr es;

CORNELIUS M'IMCCARTHY; i OF JERSEY CITY; NEW JERSEY;

GAR BR'AKE MEUI-IA'NISM;

Specification of Letters Patent.

Patented Aug. 31', 1909.

Applicationfiled May :15, 1908. Serial No; 433,040.-

Thisinvention. relates more particularly to en'iergency.brakemechanism for railway cars.

The primaryobject ofthe invention is to provide simple and eflicient means whereby the brakesof'freightand other cars may be quickly applied in caseitis desired to do so,.

thereby overcoming many objections incident to the use of the ordinary brake as applied by the hand wheel or=like methods which often resultiin' the cars being injured while making up trains,-.and in other: casesby reason of ?the fact thatthe brakes can not be applied quickly enough.

A further. object: of' the invention ais to provide simple means which maybe readily applied to cars as ordinarily constructed with substantiall no change whatey er, and \vhiclmuay be connected to the brake mechamisuras-used in connection'with: railway -ars.

w ith'these and other objects in view, the invention will be hereinafter more particularly described with reference to the accompanying. drawings, which form a part of this specification, and willvthen' be pointed out in the claims at the end of the description. 4

In the drawings, .Figure 1 is an elevation of a freight car with one form of mechanism embodying my invention applied thereto, Fig. 2.:is'a fragmentary' view of a car body shiowingafront view of'the invention as applied thereto. Figv3 is a vertical section showing. azside view of the invention; and Fig. 4 is aasectional plan view taken on the line IV-IV o-f'Fig. 2.

The car body may be supported upon the car truck 11, a-ndarra-nged oathe car body may be any form of brake mechanism as 12, which is adapted to stop the car, and which maybe operated inthe usualor in any preferred way-, all of-which -maybe of {the usual or ofany preferredconstruction;

As an independent means, or in addition to the usual-brake mechanism, I arrangeupon a part ofthecar body at the front: thereof a device 141: This device is sup portedbymeans of the brackets 15 and 16" nearth e lower part of "the car, and by upper bracket-s17 and 18, and extending between the-brackets 15*and 17" is a guide rod 19,

:and'betweenthebrackets 16and 1S is a guide rod 20. The device 1 1 may be farther braced by the rods 20 and-these rods may beconnected by'the transverse bars 20" to rigidly hold the parts together: A; spring 21 is arranged'bet-ween the brackets and around the guide rods 19 and 20, and said "springis of sufficient tension and of such length that when compressed and then re- ;leased as will be presently described, it will serveto apply thebrakes with sufficient force to stop the car; The springmember may comprise one or more elements and may havea tension of about sixty pounds, and iarranged within the spring or spring memberis a short rodor-bar 22 to the lower end of whichmay be arranged a chain or other connection 23 which is adapted to pass around a pulley or sheave 24c, and connected ,to' the brake mechanism in any suitable way. The -spring21 is shown when the brakes are iapplied, the normal position for application @of'thebrakes being when the spring is compressed.

To compress the spring and to hold the same in position to apply the brakes when released, I arrange a foot-piece -or device 24l- "which is attached to the rod 22 and is guided on therods 19 and20, so that as the foot-piece 24: is forced downward the spring will be also forced downward and will-be compressed between the foot-piece 2a or other device and the brackets 15 and 16, and in the compressed position will be held by means of pawls 25 which areheld to the rod 26. The rod 26 is rotatably held in thebrackets or arms 27 and 28 projecting outward from the car body, and on one end of saidrod is a handle 29 by which the said rod may be rotated. Aplurality of pawls 25 are provided, andeach' pawl is pivoted at 't0 the rod 26, and has-a heel 31 adapted to engage the rod 26 to determine its inward movement, and when the footpiece or device 24 is forced downward it will pass by one or more of the pawls which will move on the pivots 30, and as soon as the foot-part 32 passes by the pawls the latter will be restored to their normal posltion and will prevent upward movement of the foot-piece except by releasing the pawls. The force of the spring may be varied by the extent of compression and in case it is desired to apply the brakes, all that is nec essary is to rotate the rod 26 by means of a handle 29 which will move the pawls 25 out of the path of movement of the footpiece 24 or compressing device which will permit the spring to recoil and in doing so to force the rod 22 upward and through the connection 28 apply the brake mechanism.

From the foregoing it will be seen that simple and efiicient means is provided whereby the brakes of freight or other railway cars or vehicles may be quickly applied in case of emergency or for other purposes with sufficient force to stop the car and thereby prevent injury thereto; that a simple device is provided which may be readily at tached to cars without altering the same in any way; and that the device is so con structed that it may be easily placed in position so that when released the brakes may be applied.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with brake mechanism, ot' a vertically movable rod, means connecting the rod to the brake mechanism, a spring tending to force the rod to apply the brakes and means provided with a plurality of independently pivoted pawls for holding the spring compressed to the desired extent.

2. The combination with brake mechanism, of a movable member, means connecting the movable member to the brake mechanism, a spring tending to force the movable member connected to the brake mechanism to apply the brakes, a device for compressing the spring, rotary rod provided with movable pawls for holding the device against the action of the spring or to permit the latter to be released when said rod is rotated.

8. The combination with brake mechanism, of a vertically movable rod, means connecting the rod to the brake mechanism, a spring tending to force the rod to apply the brakes, a device for compressing the spring, and means provided with a plurality of independently pivoted pawls for holding said device against movement.

t. The combination with means for attachment to brake mechanism, of brackets, guide rods held to the brackets, a vertically movable rod, means for connecting the vertic-ally movable rod to the brake mechanism, a spring member arranged around the guide rods and movable with the movable rod, a device for forcing the rod and spring so as to compress the same, a rotary rod arranged adjacent to the spring, a handle for rotating the rod, and pawls pivotally held to the rod and adapted to engage the device when the spring is compressed and to release said device when the rod is rotated whereby the spring may act to apply the brakes.

5. The combination with means for attachment to brake mechanism, of brackets, a movable rod, means for connecting the rod to the brake mechanism, a spring movable with the movable rod, a device for forcing the rod and spring so as to compress the same, a rotary rod arranged adjacent to the spring, means for rotating the rod, and a series of pawls pivotally held to the rod and adapted to engage the device when the spring is compressed and to release said device when the rod is rotated in one direction whereby the spring may act to apply the brakes.

6. The combination with brake mechanism, of a device attached thereto, of a rotary rod arranged adjacent said device, and pawls pivotally held to said rod and adapted to engage said device and to release the same when the rod is rotated whereby the brakes may be quickly applied.

7. The combination with means for attachment to brake mechanism, of a vertically movable rod, means for connecting the vertically movable rod to the brake mechanism, a spring movable with the movable rod, a device for forcing the rod and spring so as to compress the same, a rotary rod arranged adjacent to the spring, a handle for rotating the rod, and pawls pivotally held to the rod and adapted to engage the device when the spring is compressed and to release said device when the rod is rotated whereby the spring may act to apply the brakes.

8. The combination with means for attachment to brake mechanism, of guide rods, a movable rod, means for connecting the movable rod to the brake mechanism, a

spring arranged around the guide rods and movable with the movable rod, a foot device for forcing the rod and spring so as to compress the same, a rod arranged adjacent to the spring, and pawls pivotally held to the rod and adapted to engage the device when the spring is compressed and to release said device when the rod is moved whereby the spring may act to apply the brakes.

9. The combination with means for attachment to brake mechanism, of brackets, a vertically movable rod, means for connecting the vertically movable rod to the brake mechanism, a spring movable with the movable rod, a foot device for forcing the rod and spring so as to compress the same, a rotary rod arranged adjacent to the spring, a This specification signed and witnessed handle for rotating the rod, and paWls piV- this 11th day of May, A. D. 1908.

pltally held to' the rod and adapted to engage CORNELIUS M MCCARTHY.

1e devlce When the sprlng 1s compressed 5 and to release said device when the rod is Htnesses:

rotated whereby the spring may act to apply W. A. TOWNE Jr.,

the brakes. E. M. DAso. 

